Brake rod antirattler



AHL 25, 11931- F. G. wl'rHRow. 1,820,721

' BRAKE ROD ANTIRATTLER vFiled Oct. 21. 1929 um) cnm:

v view ofthe silencer ory anti-rattler.

Patented Aug. 2.5, 1931 UNITEDSTATES BRAKE non ANTInnT'TLE'R j f,

Application med otober a1, i929. Serial Ne. 40.1.3391.,v i

lever having a Jforked end which embraces the end of the rod, such jointbeing liable to rattle and make undesirable noise particular-v ly whenworn after service for some time.`

rlhe present invention is directed to a very simple, practicalconstruction which may be applied almost instantly tothe joint betweenthe rod and lever by anyone without requiring skilled labor or the useof tools.

A n understanding of thel invention may be had Jfrom the followingdescription taken in connection with the accompanying drawings, Y

in which, Y

Fig. 1 is an elevation showing the pivot joint between a-brake rod andthe brake lever to which it is pivotally connected, the silencing devicebeing shown applied thereto. Y

Fig. 2 is a sectiony substantially on the plane of line 2 2 of Fig. lVlooking in the y sure ,Whi'chexerted'lon the parts so, to'

maintain the pivotl jointv described y'snug and'q direction indicated`by* the arrows. Fig.V 3 is an under plan View of the construction shownin Fig. 1,` and Fig. 4 is ai somewhat enlarged perspective Like`reference characters refer parts in the di fferent figures of thedrawings. The brake rod 1 at an end thereof is adapted to be pivotallyconnected to the end of the immediate brake operating arm or lever 2,the end of the arm or lever 2 being forked to provide spaced apart sides3 passrod l. A pivot pin 4 passes through the sides of the fork and thebrake rod, as shown, to pivotally'connect the two parts'together.

The silencer device which'is to-be appliedis formed from a singlelengthyof spring wire bent substantially at its middle into a close bendso that the two wires `extending from the bend lie closelyadjacent eachother forming a curved end portion 5 `from which a to` i likestraightshank 6 extends." Thelen'dsfofthe two'parts'of the wires makingthev shank 6@ are formed into spring coils 7'wo`und1routf' wardly andlfrom* the outer fends of the coils spaced apart substantially parallelside sec-f tions 8 extend, each terminating in an 'up-VV wardlyr turnedU-shaped rhookf9 open` at itslower side, as bestshownv in Fig. 4.#

The device described is appliedto the pivot joint constructionwhere thebrakerod 1 and the lever 2.are connected together byin'sert-f ing thecurved 4terminal or hooked portion" 5 between the sides 3 koi the forkand then'` bringing the coils 7 to bear againsttheendf of therod l andthe adjacent parts or 4side* edges 'of 'the sides 3,'and the sidesections'y passingunder thepiv'otjoint and under the brake rodi. f Thehooks gare broughtftoaifdi` i fully showny in Fig. 1.

abovethe rod 1 2and'hooked thereover when the device-is aus appiied thetemi;

nal hookportionr engages,againstr ther arir 2 atthe. upperl end ofthefork. 'Thes'hank 6" f passes between theV sidesf of tlie'fork. Thej'-device is sprung fromits norm'alqforin,

shown inl-Fig. 4; thecoilsbeing tens'onech'the 2 shank being jbent andsprung;likewisethe;i

side sectionsfS.- This provides a sprii'igr pirestight at alltjmesyeventhough thepivotpin* et may be reduced 'by wearing while theope'inV y .cingsinthe rod' vl landthe sides 43 of theitoik."

may be'enlarge'd. It Willlbeunderstood withlvl J1 tortion from normalform which occurs on applying the device in place.

' kIt is evident that the attachment of the device is very simple andcan be done by hand without the use of any tools and that skilled laboris not needed in any respect. The invention has proved very practicaland satis- Y factory. It is delined in the appended claims and is to beconsidered comprehensive of all forms of structure coming within theirscope.

I claim:

1. In combination with a rod, an arm having a forked end, said forkedend of the arm having a pivotal connection to an end of the 5 rod, and asilencer device formed of spring material passing at one end through thefork of said arm and bearing against said arm and against the jointbetween said arm and rod and then extending alongside the rod for a 1distance, and lmeans on the other end of said device to detachablyconnect with said rod.

2. In combination with a rod, an arm having a forked end, the sides ofthe folk'passing one at each side of an end portion of said rod, a pivotpin passing through said fork and rod to make a pivot joint betweenthem, and a tension silencing device formed of Wire bent substantiallyat its middle point into a close bend and formed into a straight shank 2and curved end portion, said: shank passing between the sides of thefork, outwardly wound coils at the end of the shank bearing against thejoint between the rod and arm, substantially parallel straight sidesextend ing from said coils, and hooks turned at right angles from theends of said sides engaging over said rod whereby said shank, coils and'sides are sprung from normal position and exert force upon said joint,for the purposes 3 described 3. In combination with a rod, an arm ha inga forked end, the sides of the fork passing one at each side of an endportion of said rod, a pivot pin passing through said fork and rod tomake a pivot joint between them, and a tension silencing device formedof wire bent Substantially at its lmiddle point into a close bend andformed into a straight shank and curved end portion, said shank havingits two wire elements in contact with each' other and said shank passingbetween the sides of the fork, outwardly wound coils at the end of theshank bearing against the joint between the rod and arm, substantiallypar- 45 allel sides extending `from said coils and means on the sidesadapted to engage around said rod whereby said shank, coils and sidesare sprung from normal position and exert force upon said joint, for thepurposes de` 4 "o scribed.

In testimony whereof I aiix Amy signature.

FLOYD G. WITHROW.

